Question

НАЙДИТЕ ЗНАЧЕНИЕ ВЫРАЖЕНИЯ N 5 ПЖ ПОД О) П) Р) С)

Answer 1

(3 7/30-1 5/12):18 1/6=1/10

3 7/30-1 5/12=97/30-17/12=
=(194-85)/60=109/60

109/60:18 1/6=
109/60:109/6=
109/60*6/109=1/10


(1 1/2+2 2/3):1 2/3=2 1/12

1 1/2+2 2/3=3/2+8/3=
=9/6+16/6=25/6

25/6: 1 2/3=25/6:5/3=
=25/6*3/5=5/2=2 1/2


(11/18- 1 7/12)*(2 1/6+7/30)=
= -2 1/3

11/18- 1 7/12=11/18-19/12=
=(22-57)/36= -35/36

2 1/6+7/30=13/6+7/30=
=65/30+7/30=72/30

-35/36* 72/30= -7/3= -2 1/3


(3 2/5-5)*(31/48+7/24)=
= -1 1/2

3 2/5-5=17/5-25/5= -8/5

31/48+7/24=31/48+14/48=
=45/48

-8/5* 45/48= -9/6= -3/2=
= -1 1/2

Answer 2

о)
3 7/30-1 5/12=3 14/60-1 25/60=
=2 74/60-1 25/60=1 49/60
1 49/60÷18 1/6=109/60÷109/6=
=109/60×6/109=1/10

п)
1 1/2+2 2/3=1 3/6+2 4/6=3 7/6=
=4 1/6
4 1/6÷1 2/3=25/6÷5/3=25/6×3/5=
=5/2=2 1/2

р)
11/18-1 7/12=11/18-19/12=
=22/36-57/36=-35/36
2 1/6+7/30=2 5/30+7/30=2 12/30=
=2 6/15
-35/36×2 6/15=-35/36×36/15=
=-7/3=-2 1/3

с)
3 2/5-5=-1 3/5
31/48+7/24=31/48+14/48=45/48
-1 3/5×45/48=-8/5×45/48=-3/2=
=-1 1/2